Yang Peng's alien series original science fiction works. The book continues Yang Peng's consistent style of creation—incredible imagination, extraordinary exaggeration, unrepeatable comedy, bizarre plots, sci-fi elements, relaxing, humorous, and thrilling fun. At the same time, courage, integrity, kindness, unity, patriotism, and environmental protection are integrated into the delightful storytelling. The theme is positive, setting a good example for the children.

The evil aliens were sucked into the black hole, but broke through the white hole and got out of the captivity of the crystal box. In 3199, they took the snow comet to the solar system again, and started the first shot of attacking humans on Mars. Then they launched a horrible "smashing bomb" to the earth. As a result, the earth's pollution is raging. Earth was at stake! The 15-year-old CEO Yang Jian, super-powered girl Murong Xue, little doctor Jiligulu and their peers, sailed the super space battleship "Dragon" to the distant crystal star for help, and once again encountered the enemy fleet on the edge of the solar system at a ratio of 1 against 53. Can they win?